I have recently had a megaflow system fitted but because of very low
mains water pressure the output from taps and showers is very poor. Is
there a solution to this problem?

Simon wrote:
I have recently had a megaflow system fitted but because of very low
mains water pressure the output from taps and showers is very poor. Is
there a solution to this problem?

Is the pump (I'm assuming that's what the 'system' is) properly situated?

Ian Stirling wrote:
Simon wrote:
I have recently had a megaflow system fitted but because of very low
mains water pressure the output from taps and showers is very poor. Is
there a solution to this problem?

Is the pump (I'm assuming that's what the 'system' is) properly situated?

Ignore me.

I have recently had a megaflow system fitted but because of very
low mains water pressure the output from taps and showers is very
poor. Is there a solution to this problem?

Check that all stopcocks are working and fully open. Then compare with next
door to see if there is a supply problem in your neighbourhood.

If it is good, consider replacing your old incoming water main with 25mm
MDPE.

If it is bad, you may need to install a large roof tank and a single
impellor pump to pressurise it.

Quite frankly, your plumber should have checked pressure and flow of your
supply before recommending a mains pressure solution.

Christian.

Christian McArdle wrote:
I have recently had a megaflow system fitted but because of very
low mains water pressure the output from taps and showers is very
poor. Is there a solution to this problem?

Quite frankly, your plumber should have checked pressure and flow of your
supply before recommending a mains pressure solution.


Must be pretty low pressure. Our 'mains' pressure is about 1.3 bar, and
I've put in a flowmax thermal store. The water delivery from that is so
good that we've done away with the shower pump. Maybe the OP has a poor
flow rate caused by a constriction?

--
Grunff

"Grunff" wrote in message
...
Christian McArdle wrote:
I have recently had a megaflow system fitted but because of very
low mains water pressure the output from taps and showers is very
poor. Is there a solution to this problem?

Quite frankly, your plumber should have checked pressure and flow of
your
supply before recommending a mains pressure solution.


Must be pretty low pressure. Our 'mains' pressure is about 1.3 bar, and
I've put in a flowmax thermal store. The water delivery from that is so
good that we've done away with the shower pump.

You can't use a pump from the mains.

IMM wrote:

Must be pretty low pressure. Our 'mains' pressure is about 1.3 bar, and
I've put in a flowmax thermal store. The water delivery from that is so
good that we've done away with the shower pump.


You can't use a pump from the mains.

A. We don't need to, because the flow rate is quite adequate.

B. If I want to, I could use a pump on it. Our 'mains' is a reservoir,
not a water company main (hence 'mains', not mains). So I can do
whatever the hell I want with it. I even have a garden hose without a
non-return valve on it! Ha!

--
Grunff

"Grunff" wrote in message
...
IMM wrote:

Must be pretty low pressure. Our 'mains' pressure is about 1.3 bar, and
I've put in a flowmax thermal store. The water delivery from that is so
good that we've done away with the shower pump.


You can't use a pump from the mains.

A. We don't need to, because the flow rate is quite adequate.

B. If I want to, I could use a pump on it. Our 'mains' is a reservoir,
not a water company main (hence 'mains', not mains).

Is it your own reservoir?

So I can do
whatever the hell I want with it. I even have a garden hose without a
non-return valve on it! Ha!

Is that how you get your jollies?

In an earlier contribution to this discussion,
Simon wrote:

I have recently had a megaflow system fitted but because of very low
mains water pressure the output from taps and showers is very poor. Is
there a solution to this problem?

There are two factors.

Firstly static pressure, when no water is flowing. If this is low, there
isn't a lot you can do about it - but unless it's *very* low, it probably
isn't the problem.

Secondly - and potentially more importantly - flow rate. This could be being
restricted because of inadequate pipework in your house - or by the pipe
from the common mains to your property being too small.

Have you measured the flow rate at the point where the water supply enters
your property? With a bucket and stopwatch, turn the kitchen tap (or the tap
nearest to the point of entry) full on and time how long it takes to fill
the bucket. Weigh the water (1 litre = 1 Kg) and work out the flow rate in
litres per minute - and post it here.

Those with more detailed knowledge than me will then tell you what it
*needs* to be to make your megaflow system work half decently.
--
Cheers,
Set Square
______
Please reply to newsgroup. Reply address is Black Hole!

Set Square wrote:
In an earlier contribution to this discussion,
Simon wrote:


I have recently had a megaflow system fitted but because of very low
mains water pressure the output from taps and showers is very poor. Is
there a solution to this problem?


There are two factors.

Firstly static pressure, when no water is flowing. If this is low, there
isn't a lot you can do about it - but unless it's *very* low, it probably
isn't the problem.

Secondly - and potentially more importantly - flow rate. This could be being
restricted because of inadequate pipework in your house - or by the pipe
from the common mains to your property being too small.

Have you measured the flow rate at the point where the water supply enters
your property? With a bucket and stopwatch, turn the kitchen tap (or the tap
nearest to the point of entry) full on and time how long it takes to fill
the bucket. Weigh the water (1 litre = 1 Kg) and work out the flow rate in
litres per minute - and post it here.

Those with more detailed knowledge than me will then tell you what it
*needs* to be to make your megaflow system work half decently.

20l/min is quoted by the manufacturer (I looked on the side of mine).
Realistically I think you could get by on 12-15l/min.

H

20l/min is quoted by the manufacturer (I looked on the side of mine).
Realistically I think you could get by on 12-15l/min.

But then, what's the point of having a megaflo? You might as well just save
your cash and get a combi, which is half the price (or less) than a system
boiler/megaflo combination. If your total supply is much less than 30lpm,
you might find it is a waste of money.

Christian.